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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Physiology and Pathology of unconventional lymphocytes
 Zubatá, Ivana ; Novák, Jan (advisor) ; Szotkowski, Tomáš (referee) ; Vydra, Jan (referee)
MAIT cells, mucosal-associated T lymphocytes, are a group of immune cells that have both innate and adaptive immunity abilities. They are defined by the expression of a semi-invariant TCR chain. They exhibit anti-infective potential with cytotoxic effector functions and immunomodulatory capabilities. The primary activation pathway is through the MR1 molecule of the non-classical MHC Ib class which is exerted in defense against bacteria and mycoses. MAIT cells are also able to TCR-independent activation by proinflammatory cytokines. They are involved in cytokine storms mediated by bacterial superantigens and in antiviral defense. They respond rapidly by producing a wide range of inflammatory mediators, including the repertoire of adaptive immunity Th1, Th2 and Th17 lymphocytes. Recent work shows resistance to some xenobiotics. This dissertation presents the results of an investigation of the phenotype of MAIT cell subpopulations measured by flow cytometry. By stimulation with ionomycin and PMA we analyzed their repertoire of cytotoxic abilities. In the main research project the hypothesis of anti-infective potential and resistance of MAIT cells to xenobiotics is applied to clinical practice in the field of haematooncology. The thesis presents evidence for a protective role of MAIT cells during the...
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